The following measurements were made to determine the density of a material whose value was, according to the Handbook of Chemistry is 1.26 g/mL Trial #1 = 1.21 g/mL Trial #2 = 1.22 g/mL Trial #3 = 1.22 g/mL. how accurate and precise are these measurements?

Accuracy refers to the proximity of a measurement to its true, predetermined measurement.
Precision refers to the proximity of repeated measurements of the same entity.

In this case, the true, predetermined density of the material is 1.26 g/mL. The average of the repeated measurements is:

1.21+1.22+1.22/3 ≈ 1.22 g/mL

The difference between the measured value and true value is:

1.26 - 1.22 = 0.04

The margin of error between the true value and the measured value is significant. As such, we will say that the measurement is not accurate.

Average deviation of the measurement:

(1.22-1.21) + (1.22-1.22) + (1.22-1.22) = 0.01/3

= 0.003

The average deviation is not significant. Hence the measurement can be said to be precise.

More on accuracy and precision can be found here: https://brainly.com/question/18974348

The following measurements were made to determine the density of a material whose value was, according to the Handbook of Chemistry is 1.26 g/mL Trial #1 = 1.21 g/mL Trial #2 = 1.22 g/mL Trial #3 = 1.22 g/mL. how accurate and precise are these measurements?​